Home / 10,871.23-16,309.59-3,080.11

Finding the Fourth Proportional to 10,871.23, 16,309.59 and 3,080.11

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Solution

The fourth proportional to 10,871.23, 16,309.59 and 3,080.11 is: 4,620.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.23 : 16,309.59 = 3,080.11 : x
  2. Step 2: Convert to fraction form
    10,871.23/16,309.59 = 3,080.11/x
  3. Step 3: Cross multiply
    10,871.23x = 16,309.59 × 3,080.11
  4. Step 4: Simplify right side
    10,871.23x = 50,235,331.25
  5. Step 5: Solve for x
    x = 50,235,331.25/10,871.23
  6. Step 6: Final answer
    x = 4,620.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.